Lewiston Flag

Lewiston

County Seat:
Yes
Area (mi²):
17.469
State:
Idaho

Lewiston is a city located in Nez Perce County, Idaho. Lewiston has a 2026 population of 34,914. It is also the county seat of Nez Perce County. Lewiston is currently growing at a rate of 0.32% annually and its population has increased by 1.94% since the most recent census, which recorded a population of 34,250 in 2020.

The median household income in Lewiston is $72,197 with a poverty rate of 12.52%. The median age in Lewiston is 39.8 years: 38.7 years for males, and 40.8 years for females. For every 100 females there are 95.8 males.

34.9K
Total Population
1,999
Density (mi²)
111 0.32%
Growth

Lewiston Population

Lewiston Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
202634,9141110.32%
202534,8031100.32%
202434,693-144-0.41%
202334,837-69-0.2%
202234,9063941.14%
202134,5122620.76%
202034,250400.12%
201932,9401280.39%
201832,81210%
201732,8111360.42%
201632,6751690.52%
201532,5061700.53%
201432,336630.2%
201332,2732530.79%
201232,020330.1%
201131,987640.2%
201031,923290.09%
200030,9042,82210.05%
199028,082960.34%
198027,9861,9187.36%
197026,06813,377105.41%
196012,691-294-2.26%
195012,9852,43723.1%
194010,5481,14512.18%
19309,4032,82943.03%
19206,5745318.79%
19106,0435,143571.44%
190090000%

Median Age

Overall: 39.8 years
Female: 40.8 years
Male: 38.7 years

Lewiston Adults

There are 27,298 adults, (7,146 of whom are seniors) in Lewiston.

Sex Ratio

Female: 17,701 (51.1%)
Male: 16,950 (48.9%)

Demographics

The racial composition of Lewiston includes 90.5% White, and smaller percentages for Native American, other race, Asian, Native Hawaiian or Pacific Islander, Black or African American and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White31,36090.5%
Two or more races2,0055.79%
Native American4491.3%
Other race3501.01%
Asian3340.96%
Native Hawaiian or Pacific Islander850.25%
Black or African American680.2%
Race
Population ↓
Percentage (of total)
White6871.98%
Two or more races5471.58%
Other race1500.43%
Native Hawaiian or Pacific Islander300.09%
Native American250.07%
Black or African American130.04%
Race
Population ↓
Percentage (of total)
White30,67388.52%
Two or more races1,4584.21%
Native American4241.22%
Asian3340.96%
Other race2000.58%
Native Hawaiian or Pacific Islander550.16%
Black or African American550.16%

Lewiston Marital Status

Economics and Income Statistics

Lewiston 's average per capita income is $48,731. Household income levels show a median of $72,197. The poverty rate stands at 12.52%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median ↓
Mean
Married Families$102,401-
Families$92,264$106,003
Households$72,197$89,161
Non Families$39,220$56,265

$48,731

Average Income

$72,197

Median Household Income

12.52%

Poverty Rate

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)